660156056146 has 32 divisors (see below), whose sum is σ = 1026710784000. Its totient is φ = 318127839120.

The previous prime is 660156056113. The next prime is 660156056149. The reversal of 660156056146 is 641650651066.

It is a junction number, because it is equal to n+sod(n) for n = 660156056096 and 660156056105.

It is not an unprimeable number, because it can be changed into a prime (660156056149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11514411 + ... + 11571601.

It is an arithmetic number, because the mean of its divisors is an integer number (32084712000).

Almost surely, 2^660156056146 is an apocalyptic number.

660156056146 is a deficient number, since it is larger than the sum of its proper divisors (366554727854).

660156056146 is a wasteful number, since it uses less digits than its factorization.

660156056146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59014.

The product of its (nonzero) digits is 777600, while the sum is 46.

The spelling of 660156056146 in words is "six hundred sixty billion, one hundred fifty-six million, fifty-six thousand, one hundred forty-six".